Submucosa Definition

Submucosa Sentence Examples

• The walls of the GI tract have four layers of tissue, called mucosa, submucosa, muscularis externa, and serosa.

• Connective tissue and muscle separate the muscosa from the second layer, the submucosa, which contains blood vessels, lymph vessels, nerves, and glands.

• Next to the submucosa is the muscularis externa, consisting of two layers of muscle fibers, one that runs lengthwise and one that encircles the bowel.